Hi Josh,

On 05/16/2014 05:17 PM, Josh Wu wrote:
diff --git a/board/atmel/sama5d3xek/sama5d3xek.c
b/board/atmel/sama5d3xek/sama5d3xek.c
index c835c12..1fc91d9 100644
--- a/board/atmel/sama5d3xek/sama5d3xek.c
+++ b/board/atmel/sama5d3xek/sama5d3xek.c
@@ -200,8 +200,12 @@ int board_init(void)
          at91_gmac_hw_init();
  #endif
  #ifdef CONFIG_LCD
-    if (has_lcdc())
+    if (has_lcdc()) {
          sama5d3xek_lcd_hw_init();
+
+        /* Enable flushing as we enabled dcache */
+        lcd_set_flush_dcache(1);

Why not implement in driver, or else, each SoC enable dcache will need
add this.

hmm, the thing is some at91 board, for example at91sam9x5ek board, not
defined CONFIG_SYS_DCACHE_OFF, that means DCache is enabled. But
actually it doesn't implement dcache_enable().
In above situation, if we implement it in driver, I can't tell whether
dcache is really enabled or not.
For this reason, I manually call lcd_set_flush_dcache(1) in the board file.
In the future if all boards (use hlcd driver) enabled dcache I will move
this function to hlcd driver.

I don't see any issue to implement this in driver, may be I am wrong? Can you figure out what issue you met?

Btw, if there is really have issues, can make this condition with CONFIG_SYS_DCACHE_OFF?

Best Regards,
Josh Wu

Best Regards,
Bo Shen
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